ktest and kflash

hello,
i have a probleme with kflash and ktest,
that's the output:
[root@xxxxxxx./ktest
* size is 3063808 0x002ec000
Using internal boot loader: DBG0 - Debug on ser0.
Starting boot...
Booting device with random id c0fa7c3c.
Nothing more to read. Read: 3063808/3063808
All written
Done.
[root@xxxxxxx./kflash
* size is 3014656 0x002e0000
Using internal boot loader: DBG0 - Debug on ser0.
Starting boot...
We're doing a flash write, this may take up to a few minutes...Booting
device with random id c0fa0137.
Nothing more to read. Read: 3014656/3014656
All written
Done.
and when a reboot my axis, i can't do anything because he refuse a telnet
and ftp connexion. maybe the ktest and kflash doesn't work proprely.
please help me.